The Mists of Huron Court

During a walk on a country road with her collies, Jennet meets a girl playing ball with her dog in front of a pink Victorian house. A few days later, a ruin stands where she saw the house, and there is no sign of the girl or the dog. Is this strange transformation a supernatural manifestation or something more sinister?

The house was beautiful... a vintage pink Victorian in a picturesque but lonely country setting, and the girl playing ball with her dog in the yard was friendly, suggesting that she and Jennet walk their dogs together some time.
Jennet thinks she has made a new friend, until she returns to the house and finds a tumbling down ruin where the Victorian once stood and no sign that the girl and dog had ever been there.